Buried drip irrigation oxygenation device and buried drip irrigation oxygenation system

Abstract

The utility model relates to the technical field of irrigation, and provides a buried drip irrigation oxygenation device and a buried drip irrigation oxygenation system.The buried drip irrigation oxygenation device comprises a drip irrigation pipeline, an aerator and an oxygenation pipeline, the drip irrigation pipeline is provided with a water inlet end and a water outlet end, and a water flowing path is formed between the water inlet end and the water outlet end; the aerator is arranged in the drip irrigation pipeline and located in the flowing path, the aerator divides the flowing path into a flowing speed increasing section and a negative pressure section, and nanometer refining holes are formed in the side, facing the negative pressure section, of the aerator; one end of the oxygenation pipeline is communicated with the aerator, and the other end is communicated with an air source. According to the device, extra power and an air source are not needed, air is refined into tiny bubbles through the oxygenation device, dissolved oxygen in water is further increased, and air which cannot be dissolved in water is directly conveyed to deep soil through the drip irrigation belt.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation, in particular to a buried drip irrigation oxygenation device and a buried drip irrigation oxygenation system. Background Art

[0002] In recent years, the area of ​​water-saving irrigation has increased rapidly. Drip irrigation is a relatively water-saving irrigation method, and underground drip irrigation is more water-saving than ordinary drip irrigation. Moreover, underground drip irrigation can be used for a long time and is mostly used in the planting of perennial forage grasses and perennial fruit trees.

[0003] However, for the above crops, during the growth process, the soil in the root environment is composed of a coupling of solid, liquid and gas phases. Appropriately increasing the soil oxygen content can increase production and efficiency. However, conventional agronomic measures such as deep loosening and deep plowing are not suitable for perennial crops. Utility Model Content

[0004] The utility model provides a buried drip irrigation oxygenation device and a buried drip irrigation oxygenation system, which are used to solve the technical defect that the buried drip irrigation in the prior art is not suitable for deep loosening or deep plowing and oxygenation when applied to perennial crops, and achieves that no additional power and air source are required, the air is refined into tiny bubbles through the oxygenation device, the dissolved oxygen in the water is further increased, and the air that cannot be dissolved in the water is directly transported to the deep soil through the drip irrigation belt.

[0005] The utility model provides a buried drip irrigation oxygenation device, comprising:

[0006] A drip irrigation pipeline, wherein the drip irrigation pipeline has a water inlet end and a water outlet end, and a water flow path is formed between the water inlet end and the water outlet end;

[0007] An aerator, the aerator is arranged in the drip irrigation pipeline, and the aerator is located in the flow path, the aerator divides the flow path into a flow velocity increase section and a negative pressure section, and the aerator is provided with nano-fine pores on one side facing the negative pressure section;

[0008] An oxygenation pipeline, one end of which is connected to the oxygenator, and the other end of which is connected to an air source.

[0009] According to a buried drip irrigation oxygenation device provided by the utility model, the aerator includes a spindle-shaped cavity and a connecting pipe, one end of the connecting pipe is connected to the inner wall of the drip irrigation pipeline and communicated with the oxygenation pipeline, the other end of the connecting pipe is communicated with the spindle-shaped cavity, and the spindle-shaped cavity and the inner wall of the drip irrigation pipeline are circumferentially spaced.

[0010] According to a buried drip irrigation oxygenation device provided by the utility model, the spindle-shaped cavity includes a guide portion, a throat portion and a convex portion connected in sequence, the guide portion is arranged in a conical shape, and the guide portion is arranged corresponding to the flow velocity increasing section, the throat portion is arranged to protrude radially along the drip irrigation pipeline, and the convex portion is arranged corresponding to the negative pressure section.

[0011] According to the underground drip irrigation oxygenation device provided by the utility model, it also includes a nano bubble refinement structure, the nano bubble refinement structure is provided with nano refinement holes, and the nano bubble refinement structure is arranged on the convex part.

[0012] According to the underground drip irrigation oxygenation device provided by the utility model, the convex portion is arranged to protrude from the throat toward the water outlet end.

[0013] According to the underground drip irrigation oxygenation device provided by the utility model, the guide portion is arranged along the axial direction of the drip irrigation pipeline, gradually contracting from the water inlet end toward the water outlet end.

[0014] According to the underground drip irrigation oxygenation device provided by the utility model, the connecting pipe is a rhombus-shaped pipe, and the long side of the rhombus-shaped pipe is arranged along the axial direction of the drip irrigation pipeline.

[0015] According to the underground drip irrigation oxygenation device provided by the utility model, the diameter of the long side of the rhombus tube is greater than or equal to the diameter of the oxygenation pipeline.

[0016] According to the underground drip irrigation oxygenation device provided by the utility model, a connecting port is provided on the pipe wall of the oxygenation pipe, and the oxygenation pipe is connected with the connecting pipe through the connecting port.

[0017] The utility model also provides a buried drip irrigation oxygenation system, which includes the buried drip irrigation oxygenation device mentioned above, the buried drip irrigation oxygenation device includes a drip irrigation pipeline, an aerator and an oxygenation pipeline, the drip irrigation pipeline has a water inlet end and a water outlet end, a water flow path is formed between the water inlet end and the water outlet end; the aerator is arranged in the drip irrigation pipeline, and the aerator is located in the flow path, the aerator divides the flow path into a flow velocity increasing section and a negative pressure section, and the aerator is provided with nano-fine holes on one side facing the negative pressure section; one end of the oxygenation pipeline is connected to the aerator, and the other end is connected to an air source.

[0018] The utility model provides an underground drip irrigation oxygenation device, which adds an aerator and an oxygenation pipeline to the original drip irrigation pipeline, wherein the oxygenation pipeline is used to continuously transport air to the aerator to achieve continuous oxygenation operation, and the aerator is arranged in the drip irrigation pipeline and is located in the flow path. When the water body passes through the aerator, due to the Venturi effect, the flow path is divided into a flow velocity increase section and a negative pressure section, and the aerator is provided with nano-fine holes on one side facing the negative pressure section. There is a pressure difference between the inside and outside of the aerator, and air enters the negative pressure side of the flow path through the nano-fine holes, and a part of the air is dissolved in the water and is directly absorbed by the plants along with the irrigation water; the other part that is not dissolved in the water is transported by the drip irrigation belt to various positions of the plot and released into the deep soil through the dripper, so as to increase the oxygen content of the soil, and the nano-fine holes can refine the air into nano-scale bubbles, which can be more easily dissolved in water, thereby further improving the oxygenation efficiency. Therefore, the underground drip irrigation oxygenation device of the present application does not require additional power and air source, and directly transports air to the deep soil along with irrigation water through the drip irrigation belt, thereby increasing the oxygen content of the soil, which can not only improve the fertility of the soil, but also promote the growth of plants; at the same time, since no additional power source is required, the energy-saving and environmental protection capabilities of the device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the underground drip irrigation oxygenation device provided by the utility model;

[0021] Figure 2 yes Figure 1 A top view of the underground drip irrigation aeration device;

[0022] Figure 3 yes Figure 1 Elevation view of the underground drip irrigation aeration device;

[0023] Figure 4 yes Figure 1 Left side view of the underground drip irrigation aeration device.

[0024] Reference numerals:

[0025] 100. Underground drip irrigation oxygenation device;

[0026] 110, drip irrigation pipeline; 111, water inlet end; 112, water outlet end; 113, flow path; 113a, flow rate increasing section; 113b, negative pressure section; 114, communication port;

[0027] 120, oxygenator; 121, spindle-shaped cavity; 121a, flow guide; 121b, throat; 121c, convex part; 122, connecting pipe;

[0028] 130. Oxygenation pipeline;

[0029] 140. Nano bubble refinement structure; 141. Nano refinement pore. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] The utility model provides a buried drip irrigation oxygenation device and a buried drip irrigation oxygenation system.

[0034] In the embodiment of the present utility model, Figures 1 to 4As shown, the underground drip irrigation aeration device 100 includes a drip irrigation pipeline 110, an aerator 120 and an aeration pipeline 130. The drip irrigation pipeline 110 has a water inlet end 111 and a water outlet end 112, and a water flow path 113 is formed between the water inlet end 111 and the water outlet end 112; the aerator 120 is arranged in the drip irrigation pipeline 110, and the aerator 120 is located in the flow path 113, and the aerator 120 divides the flow path 113 into a flow velocity increase section 113a and a negative pressure section 113b, and the aerator 120 is provided with nano-fine holes 141 on one side facing the negative pressure section 113b; one end of the aeration pipeline 130 is connected to the aerator 120, and the other end is connected to the air source.

[0035] The drip irrigation pipeline 110 is a basic component of the irrigation system. The drip irrigation pipeline 110 has an inlet end 111 and an outlet end 112. A water flow path 113 is formed between the inlet end 111 and the outlet end 112. The irrigation water flows from the inlet end 111 toward the outlet end 112, providing the necessary growth medium for the plants through drip irrigation and other methods.

[0036] The aerator 120 is arranged in the drip irrigation pipeline 110 and is located in the flow path 113, so that the irrigation water can be oxygenated when passing through the aerator 120. Specifically, the aerator 120 divides the flow path 113 into a flow rate increase section 113a and a negative pressure section 113b, that is, when the irrigation water flows through the aerator 120, due to the Venturi effect, a pressurization side and a negative pressure side are formed on the front and rear sides of the aerator 120 along the flow direction of the irrigation water. The aerator 120 is provided with a nano-fine hole 141 on the side facing the negative pressure section 113b. Due to the effect of the pressure difference, the air in the aerator 120 enters the negative pressure section 113b through the nano-fine hole 141, so that the air can be mixed with the water, or released into the soil underground along the drip irrigation management. In addition, the nano-fine hole 141 refines the air into nano-scale bubbles. The bubbles can be more easily dissolved in the water, thereby further improving the oxygenation efficiency.

[0037] One end of the oxygenation pipe 130 is connected to the oxygenator 120, and the other end is connected to the air source, so as to ensure that air can continuously enter the oxygenator 120 through the oxygenation pipe 130 to achieve continuous oxygenation operation. The air source can be natural air or a mixed gas source of liquid nitrogen and liquid oxygen, which is not particularly limited here. Figure 1 , Figure 1 The bold arrows indicate the direction of water flow, and the relatively thin arrows indicate the direction of air flow.

[0038] The underground drip irrigation aeration device 100 provided by the utility model is provided with an aerator 120 and an aeration pipeline 130 on the original drip irrigation pipeline 110, wherein the aeration pipeline 130 is used to continuously deliver air to the aerator 120 to achieve continuous aeration operation, and the aerator 120 is arranged in the drip irrigation pipeline 110 and is located in the flow path 113. When the water passes through the aerator 120, due to the Venturi effect, the flow path 113 is divided into a flow velocity increase section 113a and a negative pressure section 113b, and the aerator 120 faces A nano-fine hole 141 is provided on one side of the negative pressure section 113b. There is a pressure difference between the inside and outside of the aerator 120. The air enters the negative pressure side of the flow path 113 through the nano-fine hole 141. A part of the air dissolves in the water and is directly absorbed by the plants along with the irrigation water. The other part that is not dissolved in the water is transported by the drip irrigation belt to various locations of the plot and released into the deep soil through the dripper, which will increase the oxygen content of the soil. The nano-fine hole 141 can refine the air into nano-scale bubbles, which can be more easily dissolved in water, thereby further improving the oxygenation efficiency. Therefore, the underground drip irrigation oxygenation device 100 of the present application realizes that no additional power and air source are required, and the air is directly transported to the deep soil along with the irrigation water through the drip irrigation belt, thereby increasing the oxygen content of the soil, which can not only improve the fertility of the soil, but also promote the growth of plants. At the same time, since no additional power source is required, the energy-saving and environmental protection capabilities of the device are improved.

[0039] Reference Figure 1 and Figure 2 In one embodiment, the aerator 120 includes a spindle-shaped cavity 121 and a connecting pipe 122. The aerator 120 includes a spindle-shaped cavity 121 and a connecting pipe 122. One end of the connecting pipe 122 is connected to the inner wall of the drip irrigation pipeline 110 and communicates with the aeration pipeline 130. The other end of the connecting pipe 122 is communicated with the spindle-shaped cavity 121. The spindle-shaped cavity 121 and the inner wall of the drip irrigation pipeline 110 are arranged at intervals in the circumferential direction. In this embodiment, the spindle-shaped cavity 121 and the inner wall of the drip irrigation pipeline 110 are arranged at intervals to form a pore structure. When water flows through the drip irrigation pipeline 110, a Venturi effect will be generated around the side of the spindle-shaped cavity 121 away from the water inlet end 111, that is, a lower pressure area is generated around the side of the spindle-shaped cavity 121 away from the water inlet end 111. The low-pressure area helps to absorb air from the spindle-shaped cavity 121 into the drip irrigation pipeline 110, and is refined through the nano-bubble pores to form small bubbles that mix with water, and then drip irrigation is performed, thereby increasing the dissolved oxygen content in the water.

[0040] Reference Figure 2 and Figure 3In one embodiment, the spindle-shaped cavity 121 includes a guide portion 121a, a throat portion 121b and a convex portion 121c connected in sequence, the guide portion 121a is arranged in a conical shape, and the guide portion 121a is arranged corresponding to the flow velocity increasing section 113a, the throat portion 121b is arranged to protrude along the radial direction of the drip irrigation pipe 110, and the convex portion 121c is arranged corresponding to the negative pressure section 113b. It can be understood that the guide portion 121a is the starting part of the spindle-shaped cavity 121 and is arranged in a conical shape. The guide portion 121a is located at the position of the flow velocity increasing section 113a, which can help guide the water flow to pass through the spindle-shaped cavity 121 smoothly. The throat portion 121b is located at a section of the structure after the guide portion 121a flows along the water body, and the throat portion 121b is arranged to protrude along the radial direction of the drip irrigation pipe 110. The convex shape of the throat portion 121b helps to reduce the flow cross-section at this location, so that the flow velocity of the fluid increases. The convex portion 121c is the end portion of the spindle-shaped cavity 121 along the water flow direction, corresponding to the position of the negative pressure section 113b. The convex portion 121c helps to form the negative pressure section 113b when the water flows through the spindle-shaped cavity 121, making it easier for air to enter the drip irrigation pipeline 110 from the spindle-shaped cavity 121.

[0041] Reference Figures 1 to 4 In one embodiment, the underground drip irrigation oxygenation device 100 further includes a nano bubble refinement structure 140, on which a nano bubble refinement hole 141 is provided, and the nano bubble refinement structure 140 is provided on the convex portion 121c. In this embodiment, by adding the nano bubble refinement structure 140 and the nano refinement hole 141, the underground drip irrigation oxygenation device 100 can further refine the size of the bubbles, increase the contact area between the bubbles and the water flow, and thus improve the dissolution effect of the gas. It helps to increase the dissolved oxygen content in the water, improve the oxygenation effect of the drip irrigation system, and promote the growth of plants. It should be noted that the nano bubble refinement structure 140 can be a porous material with nano pores or a nano-scale microchannel, etc., which is not specifically limited here.

[0042] Reference Figures 1 to 3 In one embodiment, the convex portion 121c is arranged to protrude from the throat portion 121b toward the water outlet end 112. In this embodiment, by protruding the convex portion 121c from the throat portion 121b toward the water outlet end 112, the setting area of ​​the convex portion 121c can be increased, and then the area of ​​the nano bubble refinement structure 140 placed at the position of the convex portion 121c can be increased to ensure that the water flow is fully in contact with the bubbles when passing through the structure, thereby increasing the dissolution efficiency of the gas.

[0043] Reference Figures 1 to 3In one embodiment, according to a buried drip irrigation aeration device 100 provided by the utility model, the guide portion is gradually arranged from the water inlet end 111 to the water outlet end 112 along the axial direction of the drip irrigation pipeline 110. In this embodiment, the guide portion is gradually arranged from the water inlet end 111 to the water outlet end 112 along the axial direction of the drip irrigation pipeline 110. So that the water flow passes through the surface of the spindle-shaped cavity 121 under the guidance of the guide portion, reducing the uneven impact of the water flow on the spindle-shaped cavity 121, which helps to reduce the resistance of the water flow, reduce energy consumption, improve the stability of the buried drip irrigation aeration device 100, and ensure the stability and uniformity of the water flow.

[0044] Reference Figure 2 and Figure 4 In one embodiment, the connecting pipe 122 is a diamond-shaped pipe, and the long side of the diamond-shaped pipe is arranged along the axial direction of the drip irrigation pipeline 110. It can be understood that the connecting pipe 122 is located in the flow path 113. In order to reduce the resistance of the connecting pipe 122 in the flow path, the connecting pipe 122 is arranged as a diamond-shaped pipe, and the long side of the diamond-shaped pipe is arranged along the axial direction of the drip irrigation pipeline 110, so as to help reduce the resistance of the water flow in the connecting pipe 122, reduce energy consumption, and ensure the smoothness and stability of the water flow.

[0045] Furthermore, the long side diameter of the rhombus tube is greater than or equal to the diameter of the aeration pipe 130. In this embodiment, the long side diameter of the rhombus tube is greater than or equal to the diameter of the aeration pipe 130 to ensure sufficient space for the flow of oxygen, reduce fluid resistance, improve flow efficiency, and ensure that sufficient oxygen is delivered to the drip irrigation system, thereby achieving a better aeration effect.

[0046] Reference Figure 3 and Figure 4 In one embodiment, a connecting port 114 is provided on the pipe wall of the aeration pipe 130, and the aeration pipe 130 is connected to the connecting pipe 122 through the connecting port 114. In this embodiment, a connecting port 114 is provided on the pipe wall of the aeration pipe 130. Among them, the connecting port 114 can be a small hole or interface opened on the wall of the pipe and connected to the outside. The aeration pipe 130 can be connected to the connecting pipe 122 through the connecting port 114. Thereby, the aerator 120 set in the aeration pipe 130 is conveniently connected to the air source. To realize the input and supply of air. Ensure that the water flow in the aeration pipe 130 is effectively oxygenated with oxygen, and improve the oxygenation effect of the drip irrigation system.

[0047] The utility model also proposes a buried drip irrigation oxygenation system, which includes a buried drip irrigation oxygenation device 100. The specific structure of the buried drip irrigation oxygenation device 100 refers to the above-mentioned embodiment. Since the buried drip irrigation oxygenation system adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0048] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A buried drip irrigation oxygenation device, characterized in that: include: A drip irrigation pipeline, wherein the drip irrigation pipeline has a water inlet end and a water outlet end, and a water flow path is formed between the water inlet end and the water outlet end; An aerator, the aerator is arranged in the drip irrigation pipeline, and the aerator is located in the flow path, the aerator divides the flow path into a flow velocity increase section and a negative pressure section, and the aerator is provided with nano-fine pores on one side facing the negative pressure section; An oxygenation pipeline, one end of which is connected to the oxygenator, and the other end of which is connected to an air source.

2. The underground drip irrigation oxygenation device according to claim 1, characterized in that: The aerator comprises a spindle-shaped cavity and a connecting pipe, one end of the connecting pipe is connected to the inner wall of the drip irrigation pipeline and communicates with the oxygenation pipeline, the other end of the connecting pipe is communicated with the spindle-shaped cavity, and the spindle-shaped cavity and the inner wall of the drip irrigation pipeline are circumferentially spaced.

3. The underground drip irrigation oxygenation device according to claim 2, characterized in that: The spindle-shaped cavity includes a guide portion, a throat portion and a convex portion connected in sequence, the guide portion is arranged in a conical shape and corresponds to the flow velocity increasing section, the throat portion is arranged to protrude radially along the drip irrigation pipeline, and the convex portion is arranged corresponding to the negative pressure section.

4. The underground drip irrigation oxygenation device according to claim 3, characterized in that: It also includes a nano bubble refinement structure, on which nano bubble refinement holes are arranged, and the nano bubble refinement structure is arranged on the convex portion.

5. The underground drip irrigation oxygenation device according to claim 3, characterized in that: The convex portion is arranged to protrude from the throat portion toward the water outlet end.

6. The underground drip irrigation oxygenation device according to claim 3, characterized in that: The guide portion is arranged along the axial direction of the drip irrigation pipeline, gradually contracting from the water inlet end toward the water outlet end.

7. The underground drip irrigation oxygenation device according to any one of claims 2 to 6, characterized in that: The connecting pipe is a rhombus-shaped pipe, and the long side of the rhombus-shaped pipe is arranged along the axial direction of the drip irrigation pipeline.

8. The underground drip irrigation oxygenation device according to claim 7, characterized in that: The diameter of the long side of the rhombus tube is greater than or equal to the diameter of the oxygenation pipeline.

9. The underground drip irrigation oxygenation device according to any one of claims 2 to 6, characterized in that: A communication port is provided on the pipe wall of the oxygenation pipe, and the oxygenation pipe is communicated with the connecting pipe through the communication port.

10. A buried drip irrigation oxygenation system, characterized in that: It comprises the underground drip irrigation oxygenation device as described in any one of claims 1 to 9.

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